I wouldn't say I necessarily prefer it, it's more that it's what I've played in the most and I think it's been the default milieu from the inception of the game. I have played in more than a few of the non-medieval settings that came out of 1E & 2E. I liked Eberron because it had a higher level of technology even if it was more magical than mechanical. I always portrayed the Realms as having smoke power, airships, and mechanical and engineering inventions, but not going too overboard. Didn't Waterdeep have a printing press; wasn't that how they produced the Daily Trumpet broad sheets?
See this from the FR Wiki
"The Lantanese were said to have stolen the technology of the printing press from
Halruaa.
[1] This, and the supposed existence of dangerous and powerful weapons on Lantan led to tense diplomatic relations between the two nations.
[1][17]"
Lantan was an island-nation in the Trackless Sea north of the Chultan peninsula, known for its advanced technology and the population's devout worship of Gond.[3][6] The nation consisted of three separate islands: Lantan itself, which the Sambar Run separated from the southern island known as...
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